mcp.method.name

Values (25)

• notifications/cancelledNotification cancelling a previously-issued request.
• initializeRequest to initialize the MCP client.
• notifications/initializedNotification indicating that the MCP client has been initialized.
• notifications/progressNotification indicating the progress for a long-running operation.
• pingRequest to check that the other party is still alive.
• resources/listRequest to list resources available on server.
• resources/templates/listRequest to list resource templates available on server.
• resources/readRequest to read a resource.
• notifications/resources/list_changedNotification indicating that the list of resources has changed.
• resources/subscribeRequest to subscribe to a resource.
• resources/unsubscribeRequest to unsubscribe from resource updates.
• notifications/resources/updatedNotification indicating that a resource has been updated.
• prompts/listRequest to list prompts available on server.
• prompts/getRequest to get a prompt.
• notifications/prompts/list_changedNotification indicating that the list of prompts has changed.
• tools/listRequest to list tools available on server.
• tools/callRequest to call a tool.
• notifications/tools/list_changedNotification indicating that the list of tools has changed.
• logging/setLevelRequest to set the logging level.
• notifications/messageNotification indicating that a message has been received.
• sampling/createMessageRequest to create a sampling message.
• completion/completeRequest to complete a prompt.
• roots/listRequest to list roots available on server.
• notifications/roots/list_changedNotification indicating that the list of roots has changed.
• elicitation/createRequest from the server to elicit additional information from the user via the client

Used by

* required on that signal.

History

1. v1.42.012 Jun 2026deprecated

   Moved to the OpenTelemetry GenAI semantic conventions repository.

2. v1.39.012 Jan 2026

   Added as development.